[00007efed08a4b9b] execve("../pc", ["../pc"], 0x7ffef86d5780 /* 23 vars */) = 0
[00007f1d871a979b] brk(NULL)            = 0x55951879f000
[00007f1d871ab27b] access("/etc/ld.so.preload", R_OK) = -1 ENOENT (No such file or directory)
[00007f1d871ab51e] openat(AT_FDCWD, "/etc/ld.so.cache", O_RDONLY|O_CLOEXEC) = 3
[00007f1d871ab2ab] fstat(3, {st_mode=S_IFREG|0644, st_size=2060, ...}) = 0
[00007f1d871ab6d6] mmap(NULL, 2060, PROT_READ, MAP_PRIVATE, 3, 0) = 0x7f1d87181000
[00007f1d871ab3eb] close(3)             = 0
[00007f1d871ab51e] openat(AT_FDCWD, "/lib/libc.so.6", O_RDONLY|O_CLOEXEC) = 3
[00007f1d871ab5a8] read(3, "\177ELF\2\1\1\3\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\340o\2\0\0\0\0\0"..., 832) = 832
[00007f1d871ab57e] pread64(3, "\6\0\0\0\4\0\0\0@\0\0\0\0\0\0\0@\0\0\0\0\0\0\0@\0\0\0\0\0\0\0"..., 840, 64) = 840
[00007f1d871ab2ab] fstat(3, {st_mode=S_IFREG|0755, st_size=1958320, ...}) = 0
[00007f1d871ab6d6] mmap(NULL, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f1d8717f000
[00007f1d871ab57e] pread64(3, "\6\0\0\0\4\0\0\0@\0\0\0\0\0\0\0@\0\0\0\0\0\0\0@\0\0\0\0\0\0\0"..., 840, 64) = 840
[00007f1d871ab6d6] mmap(NULL, 2010776, PROT_READ, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f1d86f94000
[00007f1d871ab6d6] mmap(0x7f1d86fb8000, 1429504, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x24000) = 0x7f1d86fb8000
[00007f1d871ab6d6] mmap(0x7f1d87115000, 356352, PROT_READ, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x181000) = 0x7f1d87115000
[00007f1d871ab6d6] mmap(0x7f1d8716c000, 24576, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x1d7000) = 0x7f1d8716c000
[00007f1d871ab6d6] mmap(0x7f1d87172000, 52888, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x7f1d87172000
[00007f1d871ab3eb] close(3)             = 0
[00007f1d871ab6d6] mmap(NULL, 12288, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f1d86f91000
[00007f1d871a5649] arch_prctl(ARCH_SET_FS, 0x7f1d86f91740) = 0
[00007f1d8719a15d] set_tid_address(0x7f1d86f91a10) = 16686
[00007f1d8719a1b9] set_robust_list(0x7f1d86f91a20, 24) = 0
[00007f1d8719a227] rseq(0x7f1d86f91680, 0x20, 0, 0x53053053) = 0
[00007f1d871ab76b] mprotect(0x7f1d8716c000, 16384, PROT_READ) = 0
[00007f1d871ab76b] mprotect(0x55951879d000, 4096, PROT_READ) = 0
[00007f1d871ab76b] mprotect(0x7f1d871bc000, 8192, PROT_READ) = 0
[00007f1d870919c4] prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0
[00007f1d871ab79b] munmap(0x7f1d87181000, 2060) = 0
[00007f1d8709a9dd] write(-1, 0x8, 16)   = -1 EBADF (Bad file descriptor)
[00007f1d870999eb] munmap(0x55951879b200, 0) = -1 EINVAL (Invalid argument)
[00007f1d86fd0aad] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[00007f1d8706b01a] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x7f1d86f91a10) = 16693
[pid 16693] [00007f1d8706b054] set_robust_list(0x7f1d86f91a20, 24 <unfinished ...>
[pid 16686] [00007f1d86fd0b1b] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 16693] [00007f1d8706b054] <... set_robust_list resumed>) = 0
[pid 16686] [00007f1d86fd0b1b] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 16693] [00007f1d86fd0b1b] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid 16686] [00007f1d8701e327] wait4(-1,  <unfinished ...>
[pid 16693] [00007f1d86fd0b1b] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 16693] [00007f1d8709ce5e] prctl(PR_SET_DUMPABLE, SUID_DUMP_DISABLE) = 0
[pid 16693] [00007f1d870999eb] munmap(0x55951879a000, 12288) = 0
[pid 16693] [000055951879b350] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x55951879b350} ---
[pid 16693] [????????????????] +++ killed by SIGSEGV +++
[00007f1d8701e327] <... wait4 resumed>[{WIFSIGNALED(s) && WTERMSIG(s) == SIGSEGV}], 0, NULL) = 16693
[00007f1d8701e327] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_KILLED, si_pid=16693, si_uid=0, si_status=SIGSEGV, si_utime=0, si_stime=0} ---
[00007f1d8701e327] close(0)             = 0
[00007f1d8701e327] openat(AT_FDCWD, "/proc/self/maps", O_RDONLY) = 0
[00007f1d87090aee] sendfile(1, 0, NULL, 4096) = -1 EINVAL (Invalid argument)
[00007f1d8706b0ad] exit_group(0)        = ?
[????????????????] +++ exited with 0 +++
